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8th International Conference on engineering and Emerging Technologies, ICEET 2022

作者： Mukange, Tsumbedzo Langerman, Josef University of Johannesburg Academy of Computer Science and Software Engineering Johannesburg South Africa

ISBN: (纸本)9781665491068

The use of software products to achieve business outcomes increases as demand for reliable and quality services increases. DevOps enables organizations to meet market demands and changing environments through much faster delivery of high-quality and stable software features. The success of DevOps depends on how an organization adopts and practices DevOps. Over the years, the adoption of DevOps has increased, as approaches and models are proposed to smooth the adoption process. However, these approaches and models focus more on software delivery outcomes and less on business outcomes. This qualitative study aims to accelerate the adoption of DevOps, focusing on achieving business outcomes. The study found that DevOps does not solely contribute to business outcomes, but operates with other business success factors from different departments. Three main challenges in aligning DevOps with business outcomes were identified, and recommendations were proposed. Specifically, a conceptual DevOps adoption process was proposed to accelerate the adoption of DevOps to meet market demands and to contribute to achieving business outcomes. The study will assist researchers and practitioners in understanding the adoption of DevOps for better business outcomes. © 2022 IEEE.

关键词： Commerce

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Enhancing digital business ecosystem trust and reputation with centrality measures

Enhancing digital business ecosystem trust and reputation wi...

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2011 Conference on Information Security for South Africa, ISSA 2011

作者： Isherwood, Donovan Coetzee, Marijke Academy of Computer Science and Software Engineering University of Johannesburg Johannesburg South Africa

ISBN: (纸本)9781457714832

Digital Business Ecosystem (DBE) is a decentralised environment where very small enterprises (VSEs) and small to medium sized enterprises (SMEs) interoperate by establishing collaborations with each other. Collaborations play a major role in the development of DBEs where it is often difficult to select partners, as they are most likely strangers. Even though trust forms the basis for collaboration decisions, trust and reputation information may not be available for each participant. Recommendations from other participants are therefore necessary to help with the selection process. Given the nature of DBEs, social network centrality measures that can influence power and control in the network need to be considered for DBE trust and reputation. A number of social network centralities, which influence reputation in social graphs have been studied in the past. This paper investigates an unexploited centrality measure, betweenness centrality, as a metric to be considered for trust and reputation. © 2011 IEEE.

关键词： Ecosystems

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The design of an identity and access management assurance dashboard model 12th

The design of an identity and access management assurance da...

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12th IFIP WG 8.9 Working Conference on Research and Practical Issues of Enterprise Information Systems, CONFENIS 2018 Held at the 24th IFIP World computer Congress, WCC 2018

作者： Damon, Ferdinand Coetzee, Marijke Academy for Computer Science and Software Engineering University of Johannesburg Johannesburg South Africa

ISBN: (纸本)9783319990392

Executives overseeing Identity and Access Management (IAM) solutions of enterprise information systems have to manage problematic issues at business, technology and governance levels and their related trade-offs. They are required to make informed investment decisions about technology in a complex, ever changing world. The IAM assurance dashboard model proposed by this research provides a comprehensive view of identity and access management components at an executive level. By revealing the current status of the IAM environment within an enterprise, strategic identity and access decisions are possible based on compliance with IAM requirements. The IAM assurance dashboard model gives the current state of an enterprise’s IAM status, based on evaluation criteria such as hot spots, maturity, technology gaps and compliance. The SABSA model supports the design of the IAM assurance dashboard which is business requirements driven, to address the needs of executives. © IFIP International Federation for Information Processing 2018.

关键词： Investments

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Boosting performance of virtualized desktop infrastructure with physical GPU and SPICE

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science China(Information sciences) 2020年第7期63卷 236-238页

作者： Shupan LI Limin XIAO Chungang SHI Liequan CHE Changyou ZHANG Yuanzhang LI State Key Laboratory of Software Development Environment Beihang University School of Computer Science and Engineering Beihang University Beijing Jinghang Computation and Communication Research Institute Institute of Software Chinese Academy of Sciences School of Computer Science and Technology Beijing Institute of Technology

Dear editor,The virtual desktop infrastructure (VDI) is widely used by enterprises, as it can be easily deployed,has a reduced management cost, improves resource utilization, and can be accessed at any location by the network. Currently, there is a demand for the VDIs to support applications, such as playing 3D games, playing HD videos, and using 3D design-

关键词： visualized desktop infrastructure SPICE physical GPU The virtual machine (VM) virtual machine monitor (VMM)

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Compositional verification of liveness property in inhibitor-arc connections of Petri net systems

Journal of Software

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Journal of software 2012年第3期7卷 499-507页

作者： Pu, Fei College of Computer and Information Engineering Zhejiang Gongshang University Hangzhou China State Key Laboratory of Computer Science Institute of Software Chinese Academy of Sciences Beijing China

Petri net systems synthesis can construct large systems without the requirement of reachability analysis so that it can reduce the high complexity of analyzing global system. In a synthesis process, such good properties of subsystems as liveness and deadlock-freeness etc, must be preserved in synthesized system. This paper focusses on liveness preservation in inhibitor-arc connection operations. The systems dynamic, concurrent behavior relation i.e. concurrent language relation in inhibitor-arc connections is stressed studied. The corresponding language relation formula is present and proved, and it can be applied to determine liveness of synthesized system in inhibitor-arc connection operations. Furthermore, some criteria are introduced, which are necessary and sufficient for liveness, to determine the liveness of global system by the same ones of local systems. Finally, some examples are given, illustrating the effectiveness of the proposed approach in modeling and analyzing of large systems. © 2012 academy PUBLISHER.

关键词： Petri nets

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Path planning of multi-robot cooperation for avoiding obstacle based on improved artificial potential field method

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Sensors and Transducers 2014年第2期165卷 221-226页

作者： Zhaofeng, Yang Ruizhe, Zhang Software Engineering School of Pingdingshan University Pingdingshan Henan 467002 China Computer Science and Technic Academy Department Pingdingshan Henan 467002 China

In the process of the multi-robot collaboration, the problem of path planning is necessary to consider the barrier of static obstacles, but also to avoid collisions between the collaborative robots. This paper selected artificial potential field method as the basic method of path planning, and proposed improvement strategies for its unreachable goal and the problem of easy to fall into local minimum value and other issues. In theory, improvement measures of this paper can make repulsive force of the robot close to the obstacles around target tends to 0, and forms path planning along the edge of the obstacles. Simulation results show that the proposed method can effectively solve the inherent problems of artificial potential field to form a satisfactory path planning. © 2014 IFSA Publishing, S. L.

关键词： Motion planning

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An efficient quantum blind digital signature scheme

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science China(Information sciences) 2017年第8期60卷 226-239页

作者： Hong LAI Mingxing LUO Josef PIEPRZYK Zhiguo QU Shudong LI Mehmet A.ORGUN College of Computer and Information Science Southwest University Information Security and National Computing Grid Laboratory School of Information Science and TechnologySouthwest Jiaotong University School of Electrical Engineering and Computer Science Queensland University of Technology Institute of Computer Science Polish Academy of Sciences School of Computer and Software Nanjing University of Information Science and Technology College of Mathematics and Information Science Shandong Technology and Business University School of Computer Science National University of Defense Technology Department of Computing Macquarie University Faculty of Information Technology Macau University of Science and Technology

Recently, many quantum digital signature(QDS) schemes have been proposed to authenticate the integration of a message. However, these quantum signature schemes just consider the situation for bit messages,and the signing-verifying of one-bit modality. So, their signature efficiency is very low. In this paper, we propose a scheme based on an application of Fibonacci-, Lucas-and Fibonacci-Lucas matrix coding to quantum digital signatures based on a recently proposed quantum key distribution(QKD) system. Our scheme can sign a large number of digital messages every time. Moreover, these special matrices provide a method to verify the integration of information received by the participants, to authenticate the identity of the participants, and to improve the efficiency for signing-verifying. Therefore, our signature scheme is more practical than the existing schemes.

关键词： blind quantum digital signature Fibonacci- Lucas-and Fibonacci-Lucas matrix coding digital messages signing-verifying modality

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A new probabilistic algorithm for approximate model counting and extensions for numeric domains 2

A new probabilistic algorithm for approximate model counting...

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2nd Workshop on Logics for Reasoning about Preferences, Uncertainty, and Vagueness, PRUV 2018

作者： Ge, Cunjing Ma, Feifei Liu, Tian Zhang, Jian Ma, Xutong State Key Laboratory of Computer Science Institute of Software Chinese Academy of Sciences China Laboratory of Parallel Software and Computational Science Institute of Software Chinese Academy of Sciences China University of Chinese Academy of Sciences China School of Electronics Engineering and Computer Science Peking University China Technology Center of Software Engineering Institute of Software Chinese Academy of Sciences China

Constrained counting is important in domains ranging from artificial intelligence to software analysis. There are already a few approaches for counting models over various types of constraints. Recently, hashing-based approaches achieve success but still rely on solution enumeration. In the IJCAR version, a probabilistic approximate model counter is proposed, which is also a hashing-based universal framework, but with only satisfiability queries. A dynamic stopping criteria, for the algorithm, is presented, which has not been studied yet in previous works of hashing-based approaches. Although the algorithm lacks theoretical guarantee, it works well in practice. In this paper, we further extend our approach to SMT(LIA) formulas with a new encoding technique. © 2018 CEUR-WS. All Rights Reserved.

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Efficient Algorithm for Energy-Aware Virtual Network Embedding

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Tsinghua science and Technology 2016年第4期21卷 407-414页

作者： Shuxian Jia Guiyuan Jiang Peilan He Jigang Wu School of Computer Software Technology Zhejiang University Ningbo 315048 China School of Computer Science and Engineering Nanyang Technological University 639798 Singapore State Key Laboratory of Computer Architecture Institute of Computing Technology Chinese Academy of Sciences Beijing 100190 China

Network virtualization is a promising approach for resource management that allows customized Virtual Networks （VNs） to be multiplexed on a shared physical infrastructure. A key function that network virtualization can provide is Virtual Network Embedding （VNE）, which maps virtual networks requested by users to a shared substrate network maintained by an Internet service provider. Existing research has worked on this, but has primarily focused on maximizing the revenue of the Internet service provider. In this paper, we consider energy-aware virtual network embedding, which aims at minimizing the energy consumption for embedding virtual networks in a substrate network. In our optimization model, we consider energy consumption of both links and nodes. We propose an efficient heuristic to assign virtual nodes to appropriate substrate nodes based on priority, where existing activated nodes have higher priority for hosting newly arrived virtual nodes. In addition, our proposed algorithm can take advantage of activated links for embedding virtual links so as to minimize total energy consumption. The simulation results show that, for all the cases considered, our algorithm can improve upon previous work by an average of 12.6% on acceptance rate, while the consumed energy can be reduced by 12.34% on average.

关键词： virtualization technology virtual network embedding energy efficient optimization algorithm

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FM-FCN:A Neural Network with Filtering Modules for Accurate Vital Signs Extraction

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Research 2025年第1期2024卷 92-106页

作者： Fangfang Zhu Qichao Niu Xiang Li Qi Zhao Honghong Su Jianwei Shuai Department of Physics and Fujian Provincial Key Laboratory for Soft Functional Materials ResearchXiamen UniversityXiamen 361005China National Institute for Data Science in Health and Medicine and State Key Laboratory of Cellular Stress BiologyInnovation Center for Cell Signaling NetworkXiamen UniversityXiamen 361005China Vitalsilicon Technology Co.Ltd. JiaxingZhejiang 314006China School of Computer Science and Software Engineering University of Science and Technology LiaoningAnshan 114051China Yangtze Delta Region Institute of Tsinghua University ZhejiangJiaxing 314006China Wenzhou Institute University of Chinese Academy of SciencesWenzhou 325001China Oujiang Laboratory (Zhejiang Lab for Regenerative Medicine Vision and Brain Health)Wenzhou 325001China

Neural networks excel at capturing local spatial patterns through convolutional modules,but they may struggle to identify and effectively utilize the morphological and amplitude periodic nature of physiological *** this work,we propose a novel network named filtering module fully convolutional network(FM-FCN),which fuses traditional filtering techniques with neural networks to amplify physiological signals and suppress ***,instead of using a fully connected layer,we use an FCN to preserve the time-dimensional correlation information of physiological signals,enabling multiple cycles of signals in the network and providing a basis for signal ***,we introduce the FM as a network module that adapts to eliminate unwanted interference,leveraging the structure of the *** approach builds a bridge between deep learning and signal processing ***,we evaluate the performance of FM-FCN using remote *** results demonstrate that FM-FCN outperforms the second-ranked method in terms of both blood volume pulse(BVP)signal and heart rate(HR)*** substantially improves the quality of BVP waveform reconstruction,with a decrease of 20.23%in mean absolute error(MAE)and an increase of 79.95%in signal-to-noise ratio(SNR).Regarding HR estimation accuracy,FM-FCN achieves a decrease of 35.85%in MAE,29.65%in error standard deviation,and 32.88%decrease in 95%limits of agreement width,meeting clinical standards for HR accuracy *** results highlight its potential in improving the accuracy and reliability of vital sign measurement through high-quality BVP signal *** codes and datasets are available online at https://***/zhaoqi106/FM-FCN.

关键词： physiological signalsin filtering module fully convolutional network fm fcn which vital signs extraction amplify physiological signals convolutional modulesbut neural networks filtering module capturing local spatial patterns

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